Guiding and locking device for window sash



March 3, 1942. c. c; STEWART GUIDING AND LOCKING DEVICE FOR WINDOW SASH Filed July 14, 1939 3 Sheets-Sheet 1 V Zezuacri March 3, 1942. c; c. STEWART 2,274,854

' GUIDING AND LOCKING DEVICE FOR WINDOW SASH Filed July 14, 1939 3 Sheets-Sheet 2 6y yhzagp March 3,- 1942. c. c. STEWART 2,274,854

GUIDING AND LOCKING DEVICE FOR WINDOW SASH Filed July 14, 1959 5 Shets-Sheet s v ZZZ Patented 3, 1942 UNITED STATES PATENT. o -"Flea GUIDING ANDLO WINDO CKING DEVICE FOR W SASH Cecil c. stem, Champaim 11:.

Application July 14, 1939, Serial N0. 284,402

11 Claims.

The present invention relates to guiding and locking devices for window sash, and is particularly concerned with such guiding and locking devices, and will enable the removal of the sash for cleaning, repair, or other purposes, and eliminate the necessity for the dangerous work outside of buildings on the ordinary window sash,

scribed, which is self-locking on the closed posi-- tion and at the ventilation position,- and which cannot be unlockedor raised from the outside when it is in either of these positions.

Another object of the invention is the provision of an improved window sash and frame structure of the class described, which is adapted to compensate for the shrinking and swelling of characters or reference indicate similar parts throughout the several views.

Referring to the drawings: Fig. 1 is an inside elevational view of a window frame equipped with sash installed according to the present invention;

the sash or frame, and which may be installed.

with or without weather strips.

Another object of the invention is the provision of an improved sash locking arrangement which lends itself to control of the ventilation by the janitor only or by some other authorized person so that it is impossible for other ocnecessary for a painter to come into the house to work when the sash are all set in this position.

Another object of the invention is the elimination of window stops allowing the more compact sash installation and providing space for blinds to be set inside the frame clear of the wall.

Another object is the provision of an improved guide and locking hardware for window sash, by means of which the sash weights, cords, and stops may be eliminated and the sash so installed that they may be secured in any desired position or completely removed from the frame at will.

Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings, in which similar Fig. 2 is a larger vertical sectional view, taken on the plane of the line 2-2 of Fig. 1, looking in the direction of the arrows;

Fig. 3 is a horizontal sectional view, taken on the plane of the line 33 of Fig. 1, looking in the direction of the arrows;

Fig. 4 is a fragmentary horizontal sectional view, taken on the plane of the line 44 .of Fig. 1;

Fig. 5 is a fragmentary elevational view in partial section, showing details of structure of the movable guide support and locking arrangement;

Fig. 6 is a fragmentary horizontal sectional view, taken on the plane of the line 6-6 of Fig. 5, looking in the direction of the arrows;

Fig. 7 is a fragmentary vertical sectional view, taken on the plane of the line 'I-J of Fig. 5,1ooking in the direction of the arrows;

Fig. 8 is a fragmentary horizontal sectional view, similar to Fig. 6, with the parts in the position which they assume when the guide bar is pinned in the unlocked position;

Fig. 9 is a fragmentary horizontal sectional view, taken at the right side of the window frame and sash, showing a modified-form ofstructure;

Fig. 10 is a vertical elevational view of the combined guide bar and locking bar;

Fig. 11 is a view in perspective of a special screw used for locking the sash in certain positions.

Referring to Figs. 1 to 3, 20 indicates in its entirety the window frame, which is provided with the upper sash, indicated by 2|, and lower sash 22.

The sash may be of any conventional structure, and may be made of woodpmetal, or may comprise storm sash or screens.

The frames of the sash 2| and 22. may be regarded as exemplary of the frames or supports of many different types of closures which may be slidably mounted and secured according to the present invention.

According to the present invention, the customary window stops may be completely eliminated and the sash pulleys and weights are eliminated, as the window sash hardware constructed according to the present invention contemplates the securement of the window in various positions by means of a guide bar, which may also serve as a lock.

The window frame 20 has its vertical side members 23 and 3|, which engage the edges of the sash, provided with the grooves 24, 25, 26 and 21.

for slidably receiving suitable guide members carried by the sash, as shown in Fig. 3.

One side of each sash, preferably the left side,

may be provided with a fixed guide member, such as, for example, the angle iron member 28, having one flange 29, mortised in the edge of the sash and secured therein by suitable wood screws I groove 25 for the fixed guide 28 of the upper sash.

If desired, both of the grooves 25, 21, as well-as the grooves 24 and 25,- may be provided with a metal lining, which also extends over the inner surface of the side frame members 23 and 3| of the window frame, giving a smoothmetal surface for engaging the guide members and the edges of the sash and forproducing a sealing effect similar to that of various types of weatherstripping.

Referring to Fig. 9, it will be observed that the grooves 24 and 25 of that modification have been lined with U-shaped sheet metal members 32 and 33, having laterally extending attaching flanges. The ,U-shaped lining member 33' must, of course, have apertures for receiving the locking screws,

, further to be described, in regard to Figs: 3 and other figures.

The other edge of each sash, preferably the right edge, is provided with a locking and guiding arrangement, which includes the combined locking and guiding bar 35 of Fig. 10. .This locking bar may consist of a bar of steel or other sheet metal, suitably treated or galvanized to" sash to remove the guide bar 35 from its groove 25 or 24. When the guide baris so withdrawn into the sash, it will be evident thatthe suitable 2'! permits the sash to be pivoted inward on the guide 28 as a vertical pivot for removal from the frame. 1

Thus both of the sash may be removed from the inside for painting, cleaning, or other operations.

The guide bar as (Fig. 10) is provided with a multiplicity of grooves 40 to 50, the walls of which provide retaining shoulders for engagement with suitable keepers or stops located in the grooves 24 and 25. Any number of such grooves may be utilized, depending upon the number of positions in which it is desired to set the window sash, andthe number shown is merely exemplary of one preferred type of construction.

The grooves 24 and 25 are provided with a plurality of stop screws of two types, 5| and 52. The stop screws 5| are exemplified in Fig. 5, and may consist of ordinary round headed wood screws made of suitable non-corrodible metal, and

provided with the ordinary slot 53 for receiving a screw driver, and having one side 54 filed off flat, These flat horizontal shoulders onthe wood screws 5| all have the flat side upward when the screws are installed in the grooves 24 and 25, as shown in Fig. 2. Such screws, for example, in the groove 75 25, which receives the guide for the lower sash.

35 outward into the grooves 24 or 25.

may be used at regularly spaced points of, for example 2 each from the top of the window down to the two last stop screws, which are of the type of the screws 52.

Thestop screws 52 are exemplified in Fig 11,

and may be square headedistop screws, having the fiat sides 55 and 55 on the upper and lower sides I of the stop screw heads when they. are installed in the grooves 24 and 25.

1 It will be noted that in Fig. 2 the specially constructed round headed screws are utilized in the groove 24 at every point from the top of the window to the middle of the frame, except the two uppermost stop screws are of the type 52.

I5 1 The square headed stop screws 52 are used. 1 wherever it is desired to effect a positive locking of the guide bar as against motion in either-dij rection, and the rounded headed lock screws are F used at other points where it is desired to per-' mt the round side of the screw to cam thelocking bar inward when the window is lifted.

Referring again to Fig. 10, it will be noted that each of the grooves -50, inclusive, has an abrupt transverse shoulder 51 on the upper side,-

25 but the lower comer is beveled of! at 55 sufficiently to permit the guide bar to ride up over a round headed screw. The abrupt shouldersi'l will engage the. fiat shoulders 54 on the round headed screws 5| or the flatshoulders 55 on the 39 square headed screws 52 and hold the window against downward movement.

The beveled camming surfaces 55 will ride over round headed screws and cause the bar 35 to be cammed into its slot 35 in the sash when the sash is raised, without .using the key or other mechsquare headed screw 52 and the locking bar 35 and to prevent upward movement of the locking bar whenever the locking bar engages a square headed screw.

The two square headed screws 52 utilized at the bottom of the groove 25 (Fig. 2) serve the clearance between the sash and the frame and between the guide angle 25 and its groove 25 or' of this ventilation position is such that it does not permit the insertion of a hand, but still permits some ventilation.

The two square headed screws used at the top of the groove 24 (Fig. 2) may be used to lock the upper sash in its closed position or to lock it in a "ventilation" position a predetermined distance below the upper border of the frame.

The -sash is preferably provided with means for resiliently urging thelocking and guiding bar This resilient means may take the form of a pair of spring units 50, one at the lower part of each locking bar, and one adjacent the upper end.

These spring units may be identical, and each 5 may consist of a tubular metal member 5|, hav- I ing a through bore, which is threaded internally engagement with one end of a-compression coil spring 54,.preferably of the helical type and pro-' vided at one or both ends with a sheet metal cap 55, 55.- Each spring unit '50 is suitably secured in the sash by a tight frictional drive in a bore slot 30 is located inwardly of the surface of the V The metal cap 66 is adapted to engage the edge of the locking bar 85, and in order that the locking bar may be received in the groove 88, al-.

though the tubular member 6| extends to the edge of the sash, the tubular member Si is provided with a pair of slots 01 in its opposite walls for slidably receiving locking bar 38.

By means of the adjustment screw 03, the ten sion of the springs 04 may be adjusted and equalized, and the adjustment may be made such that .the locking bar is resiliently urged into en- The rack bar I is preferably located midway between the ends of the guide bar 35 and extends at'right angles thereto so that any pull on the rack bar acts equally on both of the ends of the guide bar 35. The housing I3 may be located in a suitable recess I6, which is formed in the righthand frame member of each sash, and which communicates with the slot 35.

This housing may consist of a U-shaped sheet metal member 15, which has a flat base 16 and flat upper and lower walls 11 and 18 at right angles to the base. The walls 71, I8 are carried by the attaching flanges 19 extending upwardly and downwardly and provided'with the apertures 80 for receiving the wood screws 8i.

A suitable sheet metal partition 02 may be seen in vertical section in Fig. 7 is of suflicient width to fit in between the upper and lower walls ll, It of the housing 15. This partition member @2 may consist of aflat piece of sheet metal preferably rectangular in form and provided with apertures at 83 arid 84 for receiving wood screws -85 and 86, respectively.

' The upper edge of the, partition member 82 is 4 bent horizontally at 87, downwardly at '80,. and inwardly at 89, to form a box-like member which fills that end of the housing 15, and the flange 89 is adapted to slidably engage the upper edge of the rack bar It. The wood screw may support a roller 90, rotatably mounted on the shank of the screw. and of sufliclent length to fit between the partition 82 and back wall 16 of the housing. The roller 90 has a sliding flt in slot I; of the rack bar In, and it serves to guide the rack bar and out of its recess 38 and the housing 13 when the sash is removed from the window.

The partition 82 is also provided with an aperture to serve as a bearing for a shaft 9|, which is fixedly secured or keyed to the pinion 92, the teeth of which engage the teeth H of rack 70.

Shaft 9| has anoutwardly extending square or non-circular end 93, which is provided with a threaded bore 98 for receiving a screw bolt 90.

The key 96 comprises a central metallic body of tubular shape, formed with a bore 91- for receiving the bolt 95, and with a non-circular socket 98 for receiving the square end 93 of shaft 9|. The radially extending wings 99 serve for engagement with the fingers, and it will be evident that the key may be permanently attached by means of the screw bolt 90,or the bolt may be eliminated so that the key is removed at will.

The recess 16 is of sufllcient depth so that the sash, and shaft 0| extends to a point below a cover plate I00. The cover plate I00 is of suiilcient size to cover the complete housing, and has 5 apertures III which register with the apertures 00 in the housing member it.

Thus. four screws 0| maybe used to secure the housing together and fasten it to the sash, in

' addition to the screws 05, 06, which secure the partition 82 in place.

- The cover plate I00 has an aperture I02 which has its center concentric with the axis of shaft 9!, and which is of sufflcient size to pass the shank of the key it lo Referring to Fig. 8, this shows a locking pin I03, which is inserted in'the auxiliary apertures I04, I 05, and engages in the slot 12 when the rack 10 and locking bar 35 have been wholly retracted into the housing I3. Pin I03 may thus be used to look a bar 86 in the retracted position. I

Theangle iron members I08 may be utilized for preventing insertion of a knife or tool from the outside of the sash, particularly the lower sash. These angle iron members may extend the full length of the lower sash,'but no farther, as they would otherwise interfere with the removpltpf the upper sash. Each angle iron member -(Fig. 3) has one flange I01 recessed in thevertical frame member 20 or 3!, and the other flange extending into the window opening in position to engage the outer face of the sash. The flange i0? may be secured to the frame members 20 or 3| by a plurality of wood screws passing through apertures in the flange 801. The

operation of the sash installation is as follows:

When the upper sash is in its uppermost position. it is locked byengagement of the locking bar with the uppermost square headed stop Tscrews 52. The same is true of the lower sash 0 in its lowermost position.

The lower sash may be raised to ventilation position by applying the key and turning it counterclockwise, which will retract the rack I0 and locking bar against the tension of,spring units at so as to withdraw the locking bar as y from engagement with the stop screws 5| or 52.

When the locking bar is in this position. the window may be raised by hand to any desired position, one. hand being used on the key, and the other on the handle in the window. Both the upper and lower'sash are preferably provided with the centrally located handles, which are customarily used on the lower sash only.

F In a similar manner'the upper sash may be to prevent the rack bar from springing wholly locked in ventilation position by engagement of its locking bar with the square headed stop screws 02.

After either sash has its locking bar moved out of the range of the two square headed screws. movement is permitted in one direction without using the key; that is, the upper sash may be moved upward or the lower sash may be moved upward, without the key. When thisis done. the beveled camming surfaces 58 on. the lower side of each of the grooves -50 of the locking bar 35 are camm'ed inward by; the round headed screws on upward movement'only.

It will be evident that either sash may be secured in any of a plurality of positions, and

At any time either. sash may be removed by e v ing. Both sides of the windows may be painted.

or washed from the inside of .the building.

The present arrangement eliminates wholly the use of the customary window stops, and it is not necessary to provide the-usual. sash weights and cords, as the sashes are held in the desired position by the guiding and locking bar.

In order to close the window, the key is used to retract the bar into its recess sumciently to clear the screw heads, and the sash is slid upward or downward, as the case may require.

.While I have illustrated a preferred embodiment of my invention, many modifications may be made without departing from the spirit of the invention, and I do 'not wish to'be limited to the precise details of construction set forth, but" desire to avail myself of all changes within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Patent of the United States, is:

1. A, guiding. and locking mechanism for a window sash, comprising a guide member. having a flange adaptedto be secured to a sash and a guide flange adapted to extend laterally of the sash into a slot of the window frame, said' guide flange extending in the direction of sliding movement of the sash for supporting one side of the sash,'and guiding and locking means for the other side of said sash, comprising a retractable Letters guide and locking bar-adapted to be slidably.

mounted on the other side of said sash for projection from and retraction into the edge of the sash, said locking bar having shoulders for engaging stop means to be carried by the frame, and said stop means comprising a plurality of wood screws adapted .to be secured in a slot in the frame, the slot receiving said locking bar, each of said screws having a side provided with a camming surface on one side and with an abrupt shoulder on the other side, whereby the locking bar may be cammed over said stop means on movement of th e sash in one direction, but

will have its shoulders engaging the stop means a to prevent movement in the other direction.

2. A guiding and locking mechanism for a window sash, comprising a guide member having a flange adapted to-- be secured to a sash and a guide flange adapted to extend laterally of the sash into aislot of the window frame, said guide flange extending in the direction of sliding movement of,.the sash for supporting one side of the sash, and guiding-and locking means for the other side 'ofsaid sash, comprising'a retractable guide and locking bar adapted to be slidably mounted on the other side of said sash for projection from and retraction into the edge ofthe sash, said lockingbar having shoulders for engaging stop means to be carried by the frame,

other side of said sash, comprising a retractable guide .and locking bar adapted tobe slidably mounted on the other side of said sash for projection from and retraction into the edge of the V sash, said locking bar having shoulders for engaging stop means to be carried by the frame, and said stop means comprising a plurality of wood screws adapted tobe' secured in a slot inthe frame, the slot receiving said locking bar, each of said screws having a side provided with a camming surface on one side and with an abrupt shoulder on the other side, whereby the locking bar may be cammed over said stop means on movement of the sash in one direction, but will have its shoulders engaging the stop means to prevent movement in the other direction, and resilient means engaging said locking bar adjacent each end, and adapted to'be mounted in said sash forresiliently urging the locking bar intothe groove of said frame, and into engagement with said stop means, and rotatable means for retracting said locking bar into the sash against the pressure of said resilient means.

4. In a window sash hardware, the combination of a metallic guiding member having, means for its securement to one edge of a sash. and having a guide flange adapted to slide in a longitudinally extending slot in a window frame,

with a retractable guide bar .adapted to be slid ably mounted in a groove in the opposite side of saidsash, and slidably engaged in a groove in the opposite side of the window frame, resilient means adapted'to be carried by said sash and engaging said guide bar adjacent each end, and urging said guide bar out of said sash into engagementwith the groove of said frame, said guide bar being provided with a plurality of slots and a plurality ofstop members adapted to be located in, the groove of said frame below the upper edges. of the groove, whereby the guide bar may be retracted sufliciently. to clear said 'stop members and still effect a guiding of the sash, or 'the guide bar may be released to engage the stop members to secure the sash inany of a plurality of adjusted positions, or the guide bar may be wholly retracted from the groove to permit the sash to' be pivoted in a direction and said stop means comprising a plurality of wood screws adapted to be secured in a slot in the frame, the slot receiving said locking-bar, each of said screws having aside provided with a' camming surface on one side and with an prevent movement in the-other direction, and resilient means engaging said locking bar ad'- jacent each end, and adapted to be mounted in 7 transverse to the guide bar, out of the frame.

5. In a window sash hardware, the combination of a metallic guiding member having means for its securement to one edge ofa sash, and having a guide flange adapted to slide in a longitudinally extending slot in a window frame, with a retractable guide bar adapted to be slidably mounted in a groove in the opposite side of said sash, and slidably engaged in a groove in the opposite side of the window frame, resilient .means adapted to be carried by said sash and engaging. said guide bar adjacent each end, and urging said guide bar out of said sash into engagement with the groove of said frame; said guide bar being provided with a plurality of slots and a pluralityof stop members adapted to be located in the groove of said frame below the upper edges of the groove, whereby the guide bar may be retracted sufllciently to clear said sash in the frame, or the bar may be engaged with said stop means for holding the sash'in any of a plurality of adjusted positions, said.

bar may be'wholly retracted from the groove to permit the sash to be pivoted in a direction transverse to the guide bar, out of the frame, certain of said stop members being provided with abrupt shoulders on both sides to secure the sash firmly against movement from the outside.

6. In a window sash hardware, the combination 'of a metallic guiding member having means for its securement'to one edge of a sash, and having aguide flange adapted to slide in a longitudinally extending slot in a window frame, with a retractable guide bar adapted to be slidably mounted in a groove in the opposite side of said sash, and slidably engaged in a groove in the opposite side of the window frame, resilient means adapted tobe carried by said sash and engaging said guide bar adjacent each end, and urging said guide bar out of said sash into en- .gagement with the groove of said frame, said guide bar' being provided with a plurality of slots and a plurality of stop members adapted to belocated in the groove of said frame below the upper edges of the groove, whereby the guide bar may be retracted sufficiently to clear said stop members and still effect a guiding of the bar.

sash, or the guide bar may be released to engage a the stop members to secure the sash in any of a plurality of adjusted positions, or the guide bar may be wholly retracted from the groove to permit the sash to be pivoted in a direction transverse to the guide bar, out of the frame, predetermined of said stop members being provided with camming surfaces on one side and an abrupt shoulder on the other side, and said slots being formed with a beveled surface on one side whereby the sash may be moved in one direction, the movement of the sash causing the looking bar to be cammed inward.

7. In a window sash hardware, the combination of a combined locking and guide bar'adapted to be slidably mounted ina groove in the edge of a sash, said guide bar having a plurality of stop shoulders and camming surfaces, and stop means having a stop-engaging shoulder adapted to be located in a groove in the frame of a window, said latter groove receiving said guide and locking bar, and means for controlling the movement of said guide and locking bar, whereby the bar may be wholly retracted into the sash-to controlling means comprising compression springs adapted to be carried by the sash and to urge the bar'outward at both of its ends.

9. In a window sash hardware, the combination of a combined locking and guide bar adapted. to be slidably mounted in a groove in ,the edge of a sash, said guide bar having ia-plurality of stop shoulders and camming surfaces, and stop means having a stop-engaging shoulder adaptedto be located in a groove in the frame of a window, said latter groove receiving said guide and -means for holding the sash in any of a plurality of adjusted positions, said controlling means comprising compression springs adapted to be carried by the sash and to urge the bar outward at both of its ends, said springs being housed in tubular members, slotted for reception of I said 10. In a window sashliardware, the combination of a combined locking and guide bar adapted:

to be slidably mounted in a groove in the edge of a sash. said guide bar having a plurality of stop shoulders and camming surfaces, and stop means having a stop-engaging shoulder adapted to be located in a groove in the frame .ofa window, said latter groove receiving said guide and locking bar, and means for controlling the movement of said guide and locking bar,-whereby the bar may be' wholly retracted into the sash to move the sash out of the frame, or the bar may be used for slidably supporting. the sash in the frame, or the bar may be engaged with said stop means for holding the sash in any of a plurality of adiusted positions, said controlling means comprising compression springs adapted to'be carried by the sash and to urge the bar outward at both of its ends, and adjustable threaded means for engaging said compression springs whereby the outward pressure of the bar may be equalized and adjusted.

11. In a window sash hardware, the combination of a combined locking and guide bar adapted to be slidably mounted in a groove in the edge move the sash out of the frame, or the 'bar. may

be used for slidably supporting the sash in the frame, or the bar may be engaged with said stop means for holding the sash in any of a plurality of adjusted positions.

v8. In a window sash hardware, the combination of a combined locking and guide bar adapted to be slidably mounted in a groove in the edge of a sash, said guide bar having a plurality of stop shoulders and camming surfaces, and" stop means having a stop-engaging shoulder adapted to be located in a groove in the frame of a window, said latter groove receiving said guide and locking bar, and means for controlling the movement of said guide and locking bar, whereby the bar may be wholly retracted into the sash to move the sash out of the frame, or

of a sash, said guide bar having a plurality of stop shoulders and cammingsurfaces, and stop means having, a stop-engaging shoulder adapted to be located in a groove in the frame of a window, said latter groove receiving said guide and locking bar, and means for controlling the movement of said guide and'locking bar, whereby the frame, or the bar may-be engaged with said stopmeansfor holding the sash in any of a plurality of adjusted positions, said controlling means the bar may be used for slidably supporting the bar may be wholly retracted into the sash to move the sash out of the frame, or the bar may be used for slidably supporting the sash in the comprising compression springs adapted to be carried by the sash and to urge the bar outward at both of its ends, and stop means comprising -a member extending through an elongated aperture located in a backwardly extending member carried by said bar for positively limiting the outward movement of the bar.

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